Porsche 911 GT3 RS: which version to buy
There is one production generation of the Porsche 911 GT3 RS in this catalogue and one named version inside it: 4.0 PDK. It has been on sale from 2022-08-01 with no end date in the data, as a Coupe, with 525 hp, 470 Nm, 3.2 s to 100 km/h, 296 km/h top speed, 1435 kg kerb weight, RWD, a 7-speed Robotic gearbox, Gasoline fuel, No boost, and a rear 6-cylinder Opposite engine of 3996 cm³.
There is one production generation of the Porsche 911 GT3 RS in this catalogue and one named version inside it: 4.0 PDK. It has been on sale from 2022-08-01 with no end date in the data, as a Coupe, with 525 hp, 470 Nm, 3.2 s to 100 km/h, 296 km/h top speed, 1435 kg kerb weight, RWD, a 7-speed Robotic gearbox, Gasoline fuel, No boost, and a rear 6-cylinder Opposite engine of 3996 cm³. If the question is which 911 GT3 RS to buy from these figures, the answer is 4.0 PDK — not because it wins a bake-off against a second GT3 RS, but because it is the only version listed. The rest of this article is the arithmetic that shows what that single choice actually buys, and which numbers are missing so they cannot be used as a buying argument.
911 GT3 RS specs that decide the purchase
Buyers searching “911 GT3 RS specs” usually want a shortlist. The shortlist here is one row.
| Version | hp | Nm | Displacement (cm³) | Fuel | Cylinders | Layout | Boost | Gearbox | Drive |
|---|---|---|---|---|---|---|---|---|---|
| 4.0 PDK | 525 | 470 | 3996 | Gasoline | 6 | Opposite | No | Robotic, 7 | RWD |
4.0 PDK is Gasoline, not a second fuel type. Cylinders are 6, layout is Opposite, boost is No. The engine sits Rear. The gearbox label is Robotic with 7 gears. Drive is RWD. Feeding is Direct injection (direct). Compression is 13.3. Bore and stroke are 102 x 81.5. Specified fuel is 98. Valves per cylinder: 4.
Those labels are the buying filter. If the requirement is AWD, another gearbox type, a boosted engine, or a body other than Coupe, 4.0 PDK does not meet it. If the requirement is a naturally aspirated rear Opposite 6 with a 7-speed Robotic and RWD, this is the row that matches.
Engine: what 525 hp and 470 Nm cost in displacement
Power per litre for 4.0 PDK is 525 ÷ (3996 ÷ 1000) = 131.4 hp/l. Torque per litre is 470 ÷ 3.996 = 117.6 Nm/l. Specific output in kilowatts is 386 ÷ 3.996 = 96.6 kW/l.
Peak power is given at 6300 rpm; peak torque at 6100 rpm. The gap is 200 rpm. That is a narrow window on the data sheet: both peaks sit in the same high band, not at opposite ends of the rev range. The compression figure of 13.3 sits with boost = No; the catalogue does not list a second, lower-compression GT3 RS to compare against.
Stroke divided by bore is 81.5 ÷ 102 = 0.80. The 3996 cm³ unit is therefore undersquare on these numbers. That is a description of the given 102 x 81.5 pair, not a second engine.
There is no other GT3 RS displacement in the data, so there is no “smaller engine vs 4.0” trade. The litre figure is the whole engine story: 3996 cm³, 525 hp, 470 Nm, No boost.
Performance vs mpg: the numbers that exist and the ones that do not
4.0 PDK reaches 100 km/h in 3.2 s and a top speed of 296 km/h. Combined consumption is 13.4 (the catalogue unit for the mixed figure). City consumption is not measured. Highway consumption is not measured. Eco class is not measured. CO2 is 305.
A tank of 64 litres at the combined 13.4 figure gives a calculated range of 64 ÷ 13.4 × 100 = 477.6 km on the mixed number only. That calculation cannot be repeated for city or highway because those two rates are not measured. Anyone choosing this car on “mpg” has one measured consumption point, not three.
Speed per second of the 0–100 run is 100 ÷ 3.2 = 31.25 km/h per second of that sprint, as an average over the given interval. Top speed is 296 − 100 = 196 km/h above the 100 km/h mark; the data do not give the time for that second interval.
If the buying rule is “I need a published city figure,” 4.0 PDK fails that rule: city is not measured. If the rule is “I will accept a combined 13.4 and CO2 of 305 in exchange for 3.2 s and 296 km/h,” the version meets it.
Dimensions, weight, and what 525 hp has to move
Kerb weight of 4.0 PDK is 1435 kg. Gross weight is 1782 kg. The difference — payload in the catalogue sense — is 1782 − 1435 = 347 kg. Ground clearance is not measured. Wheels are 255/35 R20 and 315/30 R21. Tank is 64 litres, as above.
Weight per horsepower at kerb is 1435 ÷ 525 = 2.73 kg/hp. Horsepower per tonne at kerb is 525 ÷ (1435 ÷ 1000) = 365.9 hp/t. At gross weight the same ratios become 1782 ÷ 525 = 3.39 kg/hp and 525 ÷ 1.782 = 294.6 hp/t. Loading the car from kerb to gross therefore adds 347 kg and cuts specific power by 365.9 − 294.6 = 71.3 hp/t.
There is no second kerb figure for a lighter or heavier GT3 RS, so you cannot buy a “light” vs “heavy” version of this model in the data. You can only decide whether 1435 kg with 347 kg of gross margin is acceptable.
Front and rear suspension are both Independent, spring. Front and rear brakes are both Ceramic ventilated. Those four labels do not split into optional packages in this dataset; 4.0 PDK is the specification.
The rear tyre section 315 vs front 255 is a 60 mm difference (315 − 255). Rear rim diameter is 21 vs 20 at the front. That stagger is part of the one version, not a choice between two wheel packages in the table.
Generations: what changed, and what did not
This catalogue lists 1 generation (generation key 7855), start 2022-08-01, stop null, body Coupe, 1 modification. There is no restyling row and no second generation to move to.
So a generation-based buying question — “first vs later GT3 RS” — has no second column. Nothing in the numbers shows a facelift power bump, a later gearbox, or a change from RWD to another drive type. The modification 4.0 PDK starts on the same date as the generation, 2022-08-01, and also has stop null.
What “generation 1” buys, in arithmetic terms, is the full set already listed: 525 hp, 470 Nm, 3996 cm³, 3.2 s, 296 km/h, 1435 / 1782 kg, 13.4 combined, 305 CO2, 64-litre tank, 7-speed Robotic, RWD, No boost.
Which version to choose
Choose 4.0 PDK if all of the following match the intended use:
- Coupe body, one generation, in production from 2022-08-01 with no stop date in the data.
- 525 hp (386 kW) at 6300 rpm and 470 Nm at 6100 rpm from 3996 cm³, Gasoline, 6 cylinders, Opposite, Rear, No boost, Direct injection (direct), compression 13.3, 102 x 81.5, fuel 98.
- 7-speed Robotic, RWD.
- 3.2 s to 100 km/h and 296 km/h.
- Combined 13.4, CO2 305, tank 64 (calculated mixed range 477.6 km).
- Kerb 1435 kg, gross 1782 kg, payload 347 kg, 2.73 kg/hp at kerb, 365.9 hp/t at kerb.
- Wheels 255/35 R20 and 315/30 R21; Independent, spring suspension both ends; Ceramic ventilated brakes both ends.
Do not treat 4.0 PDK as a choice among GT3 RS variants for AWD, a different gearbox, a boosted engine, a second body, or a later generation: none of those appear. Do not use city mpg, highway mpg, eco class, or ground clearance as a tie-breaker — each is not measured.
There is no second named version to split by power the way two identically named gearboxes would be split (for example two “3.3 AT” rows at different hp). The exact catalogue name is 4.0 PDK. Extra money cannot be mapped to extra horsepower inside this model’s table, because the table has one power figure. The buying decision versus other Porsche models is outside this dataset; inside it, the only version, and the only generation, is 4.0 PDK.